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Manufacturer Part #


AUIR2085S Series 100V 1A High Speed Self Oscillating Half Bridge Driver - SOIC-8

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Mfr. Name: Infineon
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Technical Attributes
Attributes Table
Configuration: Half Bridge
No of Outputs: Dual
Peak Output Current: 1A
Supply Voltage-Max: 15V
Package Style:  SOIC-8
Mounting Method: Surface Mount
Features & Applications
International Rectifier (IR) is a pioneer and world leader in advanced power management technology, from digital, analog and mixed-signal ICs to advanced circuit devices, power systems and components. The world's leading manufacturers of computers, appliances, automobiles, consumer electronics and defense systems rely on IR technology to drive the performance and efficiency of their products. 


  • Integrated 50% duty cycle oscillator & half-bridge driver IC in a single SO-8 package
  • Programmable switching frequency with up to 500kHz max per channel
  • +/- 1A drive current capability optimized for low charge MOSFETs
  • Adjustable overcurrent protection
  • Undervoltage lockout and internal soft start
  • Leadfree, RoHS compliant
  • Automotive qualified*

The AUIR2085S is a self oscillating half-bridge driver IC with 50% duty cycle ideally suited for 36V ? 75V half-bridge DC-bus converters. This product is also suitable for push-pull converters without restriction on input voltage. Each channel frequency is equal to fOSC, which can be set by selecting RT & CT, where fOSC = 1/(2*RT.CT). Dead-time can be controlled through proper selection of CT and can range from 50ns to 200ns. Internal soft-start increases the pulse width during power up and maintains pulse width matching for the high and low outputs throughout the start up cycle. The AUIR2085S initiates a soft start at power up and after every overcurrent condition. Undervoltage lockout prevents operation if VCC is less than 7.5V.

The AUIR2085S is available in tubes of 95.
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